Mechanical movement.



PATENTED MAY-'7, 1907.

B, HALL. MECHANICAL MOVEMENT.

APPLIOATION FILED APR.1,1904

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.7 UNITED STATES, PATENT OFFICE.

BICKNELL HALL, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO HUBER- HODGMAN PRINTING PRESS COMPANY, OF TAUNTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed April 1,1904. Serial No. 201,045.

T (tZZ Hill/0772 it may concern:

Be it known that I, BICKNELL HALL, a citizen of the United States, residing at Taunton, county of Bristol, State of Massachusetts, have invented an Improvement in Mechanical Movements, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to that class of mechanical movements set forth in the United States Letters Patent No. 753,389, granted I have used the same letters, to designatesimilar parts, as were used in the patent referred to. V

Figure 1 is a side elevation of a portion of a printing press showing the shifting-gear in mesh with the upper rack. Fig. 2 illustrates the parts with the shifting-gear in mesh with the lower rack. Fig. 3 is a sectional view, looking down on Fig. 1. Fig. 4 a vertical sectional detail.

The auxiliary or reversing shaft G is journaled in the box N, which is bolted fast to the main frame A, and on its end is mounted the reversing-gear H provided with a usual reversing crank pin H adapted to co-operate with usual vertical slot mechanism on orconnected with the bed D of the press. A portion of one of the printing or impression cylinders is shown at C, the same being co-operatively driven relative to said bed by any of the usual mechanisms. The shifting or beddriving gear L is mounted to rotate on the bearing M at one end of the lever M and receives its motion from the said reversinggear H through the unison ring S in the usual manner. This unison ring, constituting means laterally connecting the reversinggear or driving'member and the driving gear L, is similar to that indicated by the same letter in said patent No. 753,389.

The lever M is fulerumed on the stud O and is provided with a stud 0*, working in a cam-groove P, by means of which it may be shifted or vibrated so as to cause the engagement of the shifting or bed-driving gear L either with the upper rack E or the lower rack E, as desired, in the movement of the bed, said upper and lower racks being in vertical alinement with said gear L. The camgroove P is carried by the gear P, which is mounted on an auxiliary shaft P and receives its motion from a pinion R on the main shaft F.

The bearing M of the lever M constitutes a carrier for the bed-driving gear L and surrounds one end of the box N but without contact, although it can be readily seen that the vertical sides of the hole through the bearing M could have frictional contact with the sides of the box N provided the contacting surfaces of both pieces were curved, and the curves struck from the center of the stud 0 The stud 0 works in a slot in the free end of the lever M and its flanged head together with the flanged head of the stud 0 serves to hold the flat side of the lever M in frictional contact with the opposed surface of the box N. The stud O can also be used to act as a stop to limit the motion of the lever M It will be readily understood that the lever M carrying the shifting or bed-driving gear L is moved by the cam-gear P, at the proper time to cause the shifting or bed-driving gear to mesh with the proper rack E orE.

From the foregoing description the operation of the parts is apparent and it will be seen that l have greatly simplified and cheapened the bearing which carries the shifting-gear and its connecting and operating parts.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A reciprocating bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear interposed between the same and said shaft and a lever pivoted at one side of said shaft, connected to and supporting said carrier, and means to operate said lever.

2. A reciprocating bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear interposed between the same and said shaft and a lever stationarily pivoted at one side of said shaft, connected to and supporting said carrier and means to operate said lever.

3. A reciprocating bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear interposed between the same and said shaft, a lever stationarily pivoted at one side of said shaft. and operating means therefor, said lever directly supporting said care rler.

4. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into. engagement with one or the other of said racks, said gear surrounding said shaft, a carrier supporting and operating lever pivoted at one side of said shaft, a carrier supported and operated thereby, said carrier being interposed between said shaft and said gear, and

' operating means for said lever.

5. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks, said gearsurrounding said shaft, a carrier supporting and operating lever pivoted at one side of said shaft having a supporting and operating carrier formed therewith and interposed between said gear and said shaft and means to operate said lever.

6. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks, saidgear surrounding said shaft, a carrier supporting and operating mechanism mounted at one side of said shaft, a carrier sup ported and operated; thereby, said carrier being interposed between said gear and said shaft and operating means for said operating mechanism.

7. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks ,said gear surrounding said shaft, a carrier sup porting and operating mechanism mounted at one side of said shaft, a carrier for said gear interposed between the same and said shaft and directly supported by and directly operated by said mechanism, and means to operate said mechanism.

8,. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely of its axis to. bring it into engagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear interposed between the same and said shaft, a lever pivoted to the framework at one side of said shaft and connected to said carrier to support and operate the same, and means engaging said lever to operate the same.

9. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely to its axis to bring it into engagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear interposed between the same and said shaft, a carrier supporting and operating le ver stationaril y pivoted intermediate its ends and connected to said carrier at one end thereof to operate and support the same, and operating means for said lever.

10. A reciprocatory bed motion for print ing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located between said racks and adapted to be shifted transversely to its axis to bring it into en gagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear whereby the same may be shifted transversely of its axis, operating and supporting mechanism for said carrier directly connected with said carrier to support and operate the same and mounted at one side of said shaft, and means to operate said supporting mechanism. v

11. A reciprocatory bed motion for printing presses comprising two racks, a reversing shaft, a bearing therefor, a gear located be' tween said racks and adapted to be shifted transversely of its axis to bring it into engagement with one or the other of said racks, said gear surrounding said shaft, a carrier for said gear whereby the same may be shifted transversely of its axis an operating name to this specification in the presence of and supportinfg levler 1flog S&]d(f1-{I] 6I}1)iVOt6d tWo subscribing Witnesses.

at one side 0' saic s a '0 an (irecty connected therewith to support and operate the BICKNELL HALL same and means to operate said supporting Witnesses:

mechanism. W. K. HODGMAN, In testimony whereof I have signed my i F. M. ATWOOD. 

